It rly could be that... or a mutation
In Dev’s flash back story the mom said his dad was a pel ╮(￣▽￣)╭
True that
Did she really said that?
I think she didn't say that his father was a pel but she said he got those eyes from his father
Wha- I remember she said dev is a full spinel
Spoiler
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— Dev beg Lowell to get rid of him because he knows what happened to Lowell's parents. They died protecting Spinels and Dev is afraid and insecure of his status. He can't do anything and can't protect Lowell so he beg him to let him go
— The King is ill and Prince Fritz plans to let all the Spinel go the moment he step on the throne. The King died and the plan worked
— Lowell said that the necklace is only an excuse to see Dev again from the beginning.
Also i don't know this is only my theory don't hate me
what if Dev's eyes is because of an offspring of a Spinel and a Pel